Finding the Fourth Proportional to 118,469.88, 163,492.83 and 64,758.54

Step by Step Solution

1. Step 1: Write the proportion equation
   118,469.88 : 163,492.83 = 64,758.54 : x
2. Step 2: Convert to fraction form
   118,469.88/163,492.83 = 64,758.54/x
3. Step 3: Cross multiply
   118,469.88x = 163,492.83 × 64,758.54
4. Step 4: Simplify right side
   118,469.88x = 10,587,556,971.27
5. Step 5: Solve for x
   x = 10,587,556,971.27/118,469.88
6. Step 6: Final answer
   x = 89,369.19